Use ultrasonic control servo_smart trash

Use ultrasonic control servo_smart trash can
（採用超音波控制伺服_智慧垃圾桶）
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canWiring diagram（接線圖）：circuitdigest....

[@yupingliao4078]

Please like👍 + subscribe to the channel code👇 /*Use ultrasonic control servo_smart trash can */ #include const int TRIG_PIN = 6; const int ECHO_PIN = 7; const int SERVO_PIN = 9; const int DISTANCE_THRESHOLD = 50; Servo servo; void setup() { Serial.begin (9600); pinMode(TRIG_PIN, OUTPUT); pinMode(ECHO_PIN, INPUT); servo.attach(SERVO_PIN); servo.write(0); } void loop() { digitalWrite(TRIG_PIN, HIGH); delayMicroseconds(10); digitalWrite(TRIG_PIN, LOW); duration_us = pulseIn(ECHO_PIN, HIGH); distance_cm = 0.017 * duration_us; if(distance_cm < DISTANCE_THRESHOLD) servo.write(90); else servo.write(0); Serial.print("distance: "); Serial.print(distance_cm); Serial.println(" cm"); delay(500); }